can't get item in array at v0.14

[rise0chen]

Student:
  - Name: Tom
  - Name: Bob

println!("{}", cfg.get_string("Student[0].Name").unwrap())

error:

called `Result::unwrap()~on an “Err`value: configuration property "student[0].name" not found

[epage]

Please in the future, write a complete issue with full reproduction steps and any relevant details (e.g. #608 says this is a regression introduced by d2ee90e).

So this was broken by #354 which was attempting to fix #340.

#531 looks to be another breakage and we should probably consider both cases in designing the fix, and not just one. In particular, some of the merging logic in #608 has me concerned.

[epage]

FYI I've posted a revert at #613